1 files changed, 47 insertions, 0 deletions
diff --git a/hw/intc/loongarch_pic_kvm.c b/hw/intc/loongarch_pic_kvm.c
index ee77f04a13..3eef81a9bb 100644
--- a/hw/intc/loongarch_pic_kvm.c
+++ b/hw/intc/loongarch_pic_kvm.c
@@ -13,6 +13,53 @@
 #include "hw/pci-host/ls7a.h"
 #include "system/kvm.h"
 
+static void kvm_pch_pic_access_reg(int fd, uint64_t addr, void *val, bool write)
+{
+    kvm_device_access(fd, KVM_DEV_LOONGARCH_PCH_PIC_GRP_REGS,
+                      addr, val, write, &error_abort);
+}
+
+static void kvm_pch_pic_access(void *opaque, bool write)
+{
+    LoongArchPICCommonState *s = LOONGARCH_PIC_COMMON(opaque);
+    LoongarchPICState *lps = LOONGARCH_PIC(opaque);
+    int fd = lps->dev_fd;
+    int addr, offset;
+
+    kvm_pch_pic_access_reg(fd, PCH_PIC_INT_MASK, &s->int_mask, write);
+    kvm_pch_pic_access_reg(fd, PCH_PIC_HTMSI_EN, &s->htmsi_en, write);
+    kvm_pch_pic_access_reg(fd, PCH_PIC_INT_EDGE, &s->intedge, write);
+    kvm_pch_pic_access_reg(fd, PCH_PIC_AUTO_CTRL0, &s->auto_crtl0, write);
+    kvm_pch_pic_access_reg(fd, PCH_PIC_AUTO_CTRL1, &s->auto_crtl1, write);
+
+    for (addr = PCH_PIC_ROUTE_ENTRY;
+        addr < PCH_PIC_ROUTE_ENTRY_END; addr++) {
+        offset = addr - PCH_PIC_ROUTE_ENTRY;
+        kvm_pch_pic_access_reg(fd, addr, &s->route_entry[offset], write);
+    }
+
+    for (addr = PCH_PIC_HTMSI_VEC; addr < PCH_PIC_HTMSI_VEC_END; addr++) {
+        offset = addr - PCH_PIC_HTMSI_VEC;
+        kvm_pch_pic_access_reg(fd, addr, &s->htmsi_vector[offset], write);
+    }
+
+    kvm_pch_pic_access_reg(fd, PCH_PIC_INT_REQUEST, &s->intirr, write);
+    kvm_pch_pic_access_reg(fd, PCH_PIC_INT_STATUS, &s->intisr, write);
+    kvm_pch_pic_access_reg(fd, PCH_PIC_INT_POL, &s->int_polarity, write);
+}
+
+int kvm_pic_get(void *opaque)
+{
+    kvm_pch_pic_access(opaque, false);
+    return 0;
+}
+
+int kvm_pic_put(void *opaque, int version_id)
+{
+    kvm_pch_pic_access(opaque, true);
+    return 0;
+}
+
 void kvm_pic_realize(DeviceState *dev, Error **errp)
 {
     LoongarchPICState *lps = LOONGARCH_PIC(dev);